package com.uraurora.crescent.function;

import com.google.common.cache.Cache;
import com.uraurora.crescent.function.functools.memoizer.MemoizerFunc6;
import com.uraurora.crescent.tuple.ITuple;

import java.util.Objects;
import java.util.concurrent.Future;

@FunctionalInterface
public interface Func6<T1, T2, T3, T4, T5, T6, RT> {

    RT on(T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6);

    default <V> Func6<T1, T2, T3, T4, T5, T6, V> after(Func1<? super RT, ? extends V> after) {
        Objects.requireNonNull(after);
        return (T1 t1, T2 t2, T3 t3, T4 t4, T5 t5, T6 t6) -> after.on(on(t1, t2, t3, t4, t5, t6));
    }

    //<editor-fold desc="柯里化和反柯里化">
    default Func5<T2, T3, T4, T5, T6, RT> curry1(T1 t1){
        return (t2, t3, t4, t5, t6) -> on(t1, t2, t3, t4, t5, t6);
    }

    default Func5<T1, T3, T4, T5, T6, RT> curry2(T2 t2){
        return (t1, t3, t4, t5, t6) -> on(t1, t2, t3, t4, t5, t6);
    }

    default Func5<T1, T2, T4, T5, T6, RT> curry3(T3 t3){
        return (t1, t2, t4, t5, t6) -> on(t1, t2, t3, t4, t5, t6);
    }

    default Func5<T1, T2, T3, T5, T6, RT> curry4(T4 t4){
        return (t1, t2, t3, t5, t6) -> on(t1, t2, t3, t4, t5, t6);
    }

    default Func5<T1, T2, T3, T4, T6, RT> curry5(T5 t5){
        return (t1, t2, t3, t4, t6) -> on(t1, t2, t3, t4, t5, t6);
    }

    default Func5<T1, T2, T3, T4, T5, RT> curry6(T6 t6){
        return (t1, t2, t3, t4, t5) -> on(t1, t2, t3, t4, t5, t6);
    }
    //</editor-fold>


    //<editor-fold desc="记忆化">
    default MemoizerFunc6<T1, T2, T3, T4, T5, T6, RT> memoize(){
        return new MemoizerFunc6<>(this);
    }

    default MemoizerFunc6<T1, T2, T3, T4, T5, T6, RT> memoize(Cache<ITuple, Future<RT>> cache){
        return new MemoizerFunc6<>(this, cache);
    }
    //</editor-fold>
}
